A playable demo for Sherlock Holmes: The Awakened is now available, providing a
sample of the upcoming game based on Sir Arthur Conan Doyle's detective
creation. The demo is just under 500 MB, and the download debuts on
GameSpot
and mirrors can be found on
AtomicGamer and Gamer's
Hell.

btw, this game isn't upcoming, I played it months ago. Had some trouble with the little needle in the haystack every once in a while and some obscure maths puzzle I couldn't work out and a really annoying stealth section in a mad house. But other than that I quite enjoyed it.